Hydraulic nozzle for water-wheels



(No Model.)

W. ,BUHLMAN. I HYDRAULIC NOZZLE FOR WATER WHEELS- Patented July 8, 1890.

jizwerzay UNITED STATES PATENT OFFICE,

\VILLIAM BUHLMAN, OF CHICAGO, ILLINOIS.

HYDRAULIC NOZZLE FOR WATER-WHEELS.

SPECIFICATION forming part of Letters Patent No. 431,739, dated July 8, 1890.

Application filed November 24, 1888. Serial No. 291,733. (No model.)

To all whom it may concern;

Be it known that 1, WILLIAM BUHLMAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have made certain new and useful Improvements in a Hydraulic Nozzle for \Vater- \Vheels, of which the following is a full, clear, and exact description, that will enable others to make and use the same, reference being had to the accompanying drawings, forming a part of thisspecification.

The object of this invention is to provide a nozzle for delivering a stream of water to a water-wheel for the purpose of increasing the force and effectiveness of the jet, and thereby adding to the power of thewheel.

Figure 1 is a plan of a turbine water-wheel, showing the relative position of my improvement; Fig. 2, a perspective of the nozzle; and Fig. 3, a transverse section of the same in plane 3, Fig. 1.

Referring to the drawings, A represents the nozzle, and 13 the motor or water-wheel. The delivery-nozzle is of a wedge-shape, terminating in the rectangular discharge or jet opening a. The dimensions or width of the discharge end of the nozzle will usually depend on the width of the buckets in the motorwheel, so as to afford the best results. The inlet end of the nozzle is square in form, and is provided with the round threaded aperture C, for the attachment of the hose or servicepipe d, connecting with the water-supply. This end of the nozzle is also made, as shown in the drawings, of very large capacity relative to that of the service-pipe opening in its end wall. Th us constructed, there is provided in the rear or inlet end of the nozzle a reservoir which plays an important part in equal- By gradually contracting the nozzle in the form of a wedge, the volume of water is delivered through a rectangular orifice, thereby increasing the effective force of the same and striking the surface of the buckets their entire width and adding to the power of the wheel.

D is the inlet-passage to the wheel, in which the contracted rectangular end of the nozzle is inserted, and D the discharge from the wheel.

Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is

l. A hydraulic nozzle for water-wheels of the form described-that is to say, of uniform width throughout its length, square in crosstion at the end, where it is connected to the service-pipe, and being at that end of large capacity relative to the round threaded service-pipe aperture C in its end wall, and tapering gradually in depth toward its dischargeend, where it terminates in the long narrow rectangular jet-opening a, substantially as and for the purpose set forth.

2. In combination with a water-wheel having the inlet-passage D, a separate nozzle therefor of the form describedviz., of uniform width throughout its length, square in cross-section at the end Where connected to the service-pipe. and being at that end of large capacity relative to the circular threaded service-pipe aperture in its end wall and tapering gradually in depth toward its discharge end, where it terminates in a square end having the long, narrow, and rectangular jet-opening a, as and for the purpose set forth.

WILLIAM BUHLMAN. WVitnesses:

JOHN WALLAoK, L. B. COUPLAND. 

